how ethernet converted into TCP/IP?

Answer 1

Ethernet is a form of connection, a cable that connects to a computer, device, router, or something like it. With that connection you can use a number of different protocols.

TCP/IP is simply one of the protocols used, and just happens to be the most dominate protocol used. So they are not converted, they are two different things. The devices that the ethernet connects to controls weather or not to use TCP/IP as a communication protocol.

Look at it this way, the ethernet is a form of transportation, and the protocol is what language to speak.

Hope this helps...